From 62000eee7de696cad5e3a307de395c77a61350ee Mon Sep 17 00:00:00 2001 From: Dale Johannesen Date: Thu, 7 Jun 2007 21:07:15 +0000 Subject: [PATCH] Do not change the size of function arguments. PR 1489. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37496 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp index ac89b179e13..f97ee721515 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp @@ -3993,7 +3993,15 @@ TargetLowering::LowerCallTo(SDOperand Chain, const Type *RetTy, Op = DAG.getNode(ExtOp, getTypeToTransformTo(VT), Op); } else { assert(MVT::isFloatingPoint(VT) && "Not int or FP?"); - Op = DAG.getNode(ISD::FP_EXTEND, getTypeToTransformTo(VT), Op); + // A true promotion would change the size of the argument. + // Instead, pretend this is an int. If FP objects are not + // passed the same as ints, the original type should be Legal + // and we should not get here. + Op = DAG.getNode(ISD::BIT_CONVERT, + VT==MVT::f32 ? MVT::i32 : + (VT==MVT::f64 ? MVT::i64 : + MVT::Other), + Op); } Ops.push_back(Op); Ops.push_back(DAG.getConstant(Flags, MVT::i32));